摘要
金属纳米粒子的喷墨打印直接形成金属导电线路,低成本、低消耗、工艺过程简单,是一个很具吸引力的方法。虽然目前大多数的研究集中在新金属方面,如金和银,但是本实验开发出一种廉价的导电材料作为替代品,即铜纳米粒子导电油墨。用多元醇过程制备出粒径为40nm～50nm的铜纳米粒子,把铜离子很好的分散在低粘度的导电油墨中。实验成功地演示了用铜导电油墨直接形成导电线路的方法。喷墨印刷形成的铜导电线路图形具有金属般的外观,并且在热处理后具有很好的导电性。薄膜在真空中以325℃的温度持续1h后,薄膜的电阻率达到17.2μΩ·cm。
Ink-jet printing of metal nanoparticles is an attractive method for direct patterning conductive metal lines owing to low-cost, low-waste and simple process. While most of the researches here focused on novel metals such as gold and silver, we have developed a conductive ink containing copper nanoparticles as an alternative that is inexpensive conductive material. Copper particles with a size of 40nm-50nm were synthesized by polyol process, from which the well-dispersed conductive ink with low viscosity was prepared. We have successfully demonstrated a direct writing of the conductive lines using Cu conductive ink. The ink-jet printed copper patterns exhibited metallike appearance and became highly conductive upon heat treatments. The resistivity of the film reached to 17.22μΩm·cm at 325℃ for lh in vacuum.
出处
《印制电路信息》
2009年第11期28-31,35,共5页
Printed Circuit Information
关键词
喷墨
印刷
导电图形
铜纳米粒子
ink-jet
printing
conductive pattern
copper nanoparticle
